68 lines
1.6 KiB
Go
68 lines
1.6 KiB
Go
// Copyright (C) 2019 Storj Labs, Inc.
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// See LICENSE for copying information.
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package satellitedb
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import (
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"context"
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"fmt"
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"github.com/zeebo/errs"
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)
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//go:generate dbx.v1 schema -d postgres satellitedb.dbx .
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//go:generate dbx.v1 golang -d postgres satellitedb.dbx .
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//go:generate bash -c "sed -i'' '1i //lint:file-ignore * generated file\n' satellitedb.dbx.go"
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func init() {
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// catch dbx errors
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class := errs.Class("satellitedb")
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WrapErr = func(e *Error) error {
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switch e.Code {
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case ErrorCode_NoRows:
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return e.Err
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case ErrorCode_ConstraintViolation:
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return class.Wrap(&constraintError{e.Constraint, e.Err})
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}
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return class.Wrap(e)
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}
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}
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// Unwrap returns the underlying error.
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func (e *Error) Unwrap() error { return e.Err }
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// Cause returns the underlying error.
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func (e *Error) Cause() error { return e.Err }
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type constraintError struct {
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constraint string
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err error
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}
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// Unwrap returns the underlying error.
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func (err *constraintError) Unwrap() error { return err.err }
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// Cause returns the underlying error.
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func (err *constraintError) Cause() error { return err.err }
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// Error implements the error interface.
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func (err *constraintError) Error() string {
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return fmt.Sprintf("violates constraint %q: %v", err.constraint, err.err)
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}
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// WithTx wraps DB code in a transaction
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func (db *DB) WithTx(ctx context.Context, fn func(context.Context, *Tx) error) (err error) {
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tx, err := db.Open(ctx)
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if err != nil {
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return err
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}
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defer func() {
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if err == nil {
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err = tx.Commit()
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} else {
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err = errs.Combine(err, tx.Rollback())
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}
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}()
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return fn(ctx, tx)
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}
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